Abstract
A hybrid precoding scheme is proposed for high altitude platform (HAP) massive multiple-input multiple-output (MIMO) systems to obtain the radio frequency (RF) precoder and the baseband precoder with limited RF chains. We first exploit duality theory to derive the relation between the statistical channel state information (SCSI) and RF precoder, which is selected from a predefined codebook. Then, the baseband precoder is attained by zero forcing (ZF) based on the instantaneous effective channel matrix. A distinct performance gain is achieved by the proposed scheme according to the numerical results.
This work is supported by the National Natural Science Foundation of China under Grants 61771308, 91438113 and 61971278 and the Important National Science and Technology Specific Project of China under Grants 2018ZX03001020-005.
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Ji, P., Jiang, L., He, C., He, D. (2020). Hybrid Precoding for HAP Massive MIMO Systems. In: Yu, Q. (eds) Space Information Networks. SINC 2019. Communications in Computer and Information Science, vol 1169. Springer, Singapore. https://doi.org/10.1007/978-981-15-3442-3_21
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DOI: https://doi.org/10.1007/978-981-15-3442-3_21
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